トレーニングとtDCSによって誘発された一般的な学習は,前頭皮質の形態学によって予測されます
Shane E Ehrhardt1, Yohan Wards1, Thomas B Shaw2,3
1School of Psychology, The University of Queensland, McElwain Building, Campbell Road, St Lucia, 4072, QLD, Australia.
Cerebral cortex (New York, N.Y. : 1991)
|August 20, 2025
まとめ
脳刺激と認知トレーニングを組み合わせると 実行機能が向上します 個々の脳の解剖学 特に皮質の厚さは この介入が 作業のパフォーマンスを向上させるのに どれほど効果的かを予測します
科学分野:
- 神経科学
- 認知心理学
- 神経イメージング
背景:
- 脳の刺激,特にトランスクレニアル直流刺激 (tDCS) は,実行機能を強化するための有望な介入です.
- tDCSの有効性を最適化するには,皮質形態学などの個々の差異が介入結果に及ぼす影響を理解する必要があります.
研究 の 目的:
- マルチセッションのマルチタスクトレーニングと前頭部TDCSの効果を総合的に調査する.
- 個々の皮質形態が,tDCSと認知トレーニングを組み合わせた後の認知能力の改善を予測する方法を決定する.
主な方法:
- 178人の参加者が7回のテスラMRIスキャンを完了しました.
- 参加者は,オンライン前頭部tDCS (1mAまたは偽) でマルチタスクトレーニングを受けた.
- 訓練されたタスクと訓練されていないタスクのパフォーマンスを 介入前と後に評価しました
主要な成果:
- マルチタスクトレーニング中に左または右の前頭皮質に1mA tDCSを適用すると,視覚的な検索タスクに転送が強化されます.
- 1 mA tDCS群の難しい視覚的な検索作業で,アノドの下の領域の皮質の厚さは反応時間の改善を予測しました.
- 皮質の厚さとパフォーマンスの間には,偽刺激または対照トレーニングのグループでは関連性が見られなかった.
結論:
- 個々の解剖学的差異,特に皮質の厚さは,認知トレーニングと組み合わせたとき,tDCSの有効性を大幅に調節します.
- 神経解剖学的特徴は,一般的なパフォーマンスの向上を予測し,脳刺激介入におけるパーソナライズされたアプローチの重要性を強調します.
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